self-love

noun

1. the instinct by which one’s actions are directed to the promotion of one’s own welfare or well-being, especially an excessive regard for one’s own advantage.
2. conceit; vanity.
3. narcissism(def 2).

noun

1. the instinct or tendency to seek one’s own well-being or to further one’s own interest

n.also self love, 1560s, from self- + love (n.). n.

1. The instinct or desire to promote one’s own well-being; regard for or love of one’s self.